Skimz Monzter NM122 External Nitrate Reactor

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Skimz Monzter NM122 External Nitrate Reactor

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SKU: 208155
In Stock: 20
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Quick Overview

Add the Skimz Monzter NM122 NItrate Reactor to effectively reduce nitrate in a closed aquarium system. This method converts nitrate to nitrogen gas using sulfur beads. Sulfur beads encourage the growth of anaerobic bacteria as it oxidizes the sulfur.

  • Rated for tanks up 264 gallons (1000 Liters)

  • Method of feeding: Gravity or Feed Pump

  • Feed Rate: 79-132 GPH (300-500 LPH)

  • Pump: Skimz E1150

  • Total Watts: 25W


To determine how much media your system will need you will need to use the formula below.

Total tank water volume x .006 = Liters of media

Example: 120 gallons x .006 = .72 Liters



Full Details

Skimz Manufacturer's Manual




  • No need to add a carbon food source to reactor
  • Recirculating design
  • Water Swirling Chamber (WSC) to minimize dead spots by forcing water upward
  • High precision CNC machined parts
  • Quality Georg Fischer pipe fittings
  • Easy to use




  • Dimensions: 6.93" x 9.25" x 21.65" (176mm x 235mm x 550mm)
  • Body Diameter: 4.72" (120mm)
  • Feed Rate: 79-132 GPH (300-500 LPH)
  • Accepts common 1/4" OD RO tubing
  • Use with Skimz Sulpur-NO3 Media


Skimz Warranty

  • Warranty for Original Purchaser against defective material and workmanship that occurs during normal use.
  • 2 Year Warranty on reactor body
  • 1 Year Warranty on pump


2 Items

  • Poor directions and function By Idol on 11/1/2016

    I would not recommend this unit. It is just a converted calcium reactor and as stated above a screen or sponge is needed to stop the flow of Sulphur back into the pump chamber. I believe the pump is flowing in the wrong direction and that is why it back washes the Sulphur. I do not like putting companies down, but this thing is bad as a Sulphur reactor but probably good as a Calcium reactor IMO..
  • Terrible Directions By Andy on 10/22/2016

    The directions for this unit are terrible, the wrong model is show in the directions and their is very little help on-line. The Skimz site doesn't even show this model in its current configuration . The water outlet in the unit needs some type of screen on top or all of the sulphur pellets will get into the pump.


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Product Questions

What do you recommend for a feed pump for this reactor? Also, how much of a ph drop will I experience?
Question by: Jeremy Krolak on Jun 27, 2016 8:42:00 AM
Great question! I would recommend the Syncra Silent 0.5 Pump to feed this reactor. :-)
Answer by: Randy (Admin) on Jul 1, 2016 11:44:00 AM
Hello I would like to order this reactor but want the best media, sulfur beads and calcium. What do you recommend provide a few items from most to least preferred. Would this device be effective for a 100 gallon tank and sump? Also how does this really work if it is only injecting a few drops per second???

Question by: Todd Roy on Jun 29, 2016 1:35:00 PM
Great question!
For Sulfur we recommend the LSM media by Caribsea with the longest use. For calcium reactor media you can use the ARM small version for good effluent control. you will use .006 x your tank volume to determine media amount meaning your 100 gallon will use .6 L of media. This takes the nitrate and uses the sulfur to created nitrogen gas and CO2 which will then be removed from the system easily though effluent Reactor media and de-gassing. Thji sis a slow and continuous process always keeping the nitrates constant but is not designed to lower then specifically, this can be done with water changes.
Answer by: Connor (Admin) on Jul 1, 2016 11:39:00 AM
Does this reactor include the necessary media?
Question by: Matt K on Jul 18, 2014 7:28:00 AM
Hi Matt,
These do not, they are just the reactors themselves.
Answer by: Bulk Reef Supply on Jul 18, 2014 7:28:00 AM